Multiple methoxy-substituted hole transporter for inverted perovskite solar cells

Yu, Wei; Ahmad, Sajjad; Zhang, Hengkai; Chen, Zhiliang; Yang, Qing; Guo, Xin; Li, Can; Li, Gang

doi:10.1016/j.jechem.2020.07.056

Cited by 4 publications

(1 citation statement)

References 31 publications

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“…[15][16][17][18][19][20][21] To further improve the performance of PEDOT:PSS, doping with another material or inserting a modified layer can change energy levels and improve electrical conductivity of the PEDOT: PSS. [22][23][24][25] For example, Li et al [26] adopted a composite film of PEDOT:PSS and graphene oxide as HTL. Compared with the adoption of PEDOT:PSS alone, conductivity and hole transport were promoted.…”

Section: Introductionmentioning

confidence: 99%

Improving the Electrical Properties and Hole Extraction Efficiency of Inverted Perovskite Solar Cells with AuCl₃ Interfacial Modification Layer

Tang

Dong

et al. 2022

Physica Status Solidi (a)

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Poly(3,4‐ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) has been widely used in inverted perovskite solar cells (PSCs) due to its simple preparation process and high stability. However, because of its low conductivity and charge transfer ability, the power conversion efficiency (PCE) of inverted device is poor. To solve this problem, AuCl3 is introduced to modify the interface between the hole transport layer (PEDOT:PSS) and electrode (ITO). The X‐ray photoelectron spectroscopy (XPS) spectra of PEDOT:PSS confirms that the PSS chains are reduced and the conductivity are increased after AuCl3 doping. Moreover, AuCl3‐modified PEDOT:PSS is beneficial to guide crystal growth and to improve the grain size, crystallinity, and water contact angle of perovskite films. Meanwhile, the defects of PEDOT:PSS/perovskite interface are effectively passivated, which suppresses the nonradiative recombination. The hole extraction efficiency is improved from 8.88× to 1.31× s−1. As a result, the short‐current density (Jsc) and fill factor (FF) are improved, which leads to a champion device with PCE up to 18.08%, much higher than 16.03% of pristine one. The unencapsulated device remains 80% of the initial efficiency after 4 weeks under 45 ± 5% humidity. The results provide a new strategy for synergistically enhancing the efficiency and stability of PSCs by interfacial modification and doping.

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Section: Introductionmentioning

confidence: 99%

Improving the Electrical Properties and Hole Extraction Efficiency of Inverted Perovskite Solar Cells with AuCl₃ Interfacial Modification Layer

Tang

Dong

et al. 2022

Physica Status Solidi (a)

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Recent progress of scalable perovskite solar cells and modules

Wang¹,

Han²,

Duan³

et al. 2022

Energy Reviews

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Recent advances in Pb–Sn mixed perovskite solar cells

Deng

Ren

Han

et al. 2022

Journal of Energy Chemistry

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Multiple methoxy-substituted hole transporter for inverted perovskite solar cells

Cited by 4 publications

References 31 publications

Improving the Electrical Properties and Hole Extraction Efficiency of Inverted Perovskite Solar Cells with AuCl₃ Interfacial Modification Layer

Improving the Electrical Properties and Hole Extraction Efficiency of Inverted Perovskite Solar Cells with AuCl₃ Interfacial Modification Layer

Recent progress of scalable perovskite solar cells and modules

Recent advances in Pb–Sn mixed perovskite solar cells

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Multiple methoxy-substituted hole transporter for inverted perovskite solar cells

Cited by 4 publications

References 31 publications

Improving the Electrical Properties and Hole Extraction Efficiency of Inverted Perovskite Solar Cells with AuCl3 Interfacial Modification Layer

Improving the Electrical Properties and Hole Extraction Efficiency of Inverted Perovskite Solar Cells with AuCl3 Interfacial Modification Layer

Recent progress of scalable perovskite solar cells and modules

Recent advances in Pb–Sn mixed perovskite solar cells

Contact Info

Product

Resources

About

Improving the Electrical Properties and Hole Extraction Efficiency of Inverted Perovskite Solar Cells with AuCl₃ Interfacial Modification Layer

Improving the Electrical Properties and Hole Extraction Efficiency of Inverted Perovskite Solar Cells with AuCl₃ Interfacial Modification Layer